We look at the division of 864289 by 91 
We want to figure out the number of times 864289 can be divided by 91.

Step 1:
When dividing 8 by 91, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 91

On to step 2:
If we divide 86 by 91, we get 0 and a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Append the next digit (4) from the dividend to 86 and continue with: 864 / 91

Let's proceed to step 3:
If we divide 864 by 91, we get 9 and a remainder of 45.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtract 819 from 864 to get 45.
Append the next digit (2) from the dividend to 45 and continue with: 452 / 91

Step 4:
The number 91 fits into 452 4 times, leaving a remainder of 88.
Put 4 as the next digit of the answer. 
Result so far: 94.0
The remainder is 88 after subtracting 364 from 452.
Take the next digit (8) from the dividend and append it to 88, then repeat: 888 / 91

Advancing to step 5:
When dividing 888 by 91, we get 9 with a remainder of 69.
Use 9 as the next digit of our solution. 
Result so far: 949.0
Subtracting 819 from 888 leaves us with 69.
Take the next digit (9) from the dividend and append it to 69, then repeat: 699 / 91

On to step 6:
699 divided by 91 is 7 with a remainder of 62.
Put 7 as the next digit of the answer. 
Result so far: 9497.0
Subtract 637 from 699 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 7:
91 goes into 620 6 times with a remainder of 74.
The next digit of our result is 6. 
Result so far: 9497.6
The remainder is 74 after subtracting 546 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 8:
When dividing 740 by 91, we get 8 with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 9497.68
Deduct 728 from 740 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 9:
When dividing 120 by 91, we get 1 with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 9497.681
If we subtract 91 from 120, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 10:
290 divided by 91 is 3 with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 9497.6813
If we take 273 away from 290, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 11:
The number 91 fits into 170 1 times, leaving a remainder of 79.
Write down 1 as next digit of the result. 
Result so far: 9497.68131
If we subtract 91 from 170, we get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 12:
91 goes into 790 8 times with a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 9497.681318
If we subtract 728 from 790, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 13:
91 goes into 620 6 times with a remainder of 74.
Use 6 as the next digit of our solution. 
Result so far: 9497.6813186
If we subtract 546 from 620, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 14:
91 goes into 740 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 9497.68131868
If we subtract 728 from 740, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 9497.68131868 and a remainder of 1.2e-08.